W3c is the human body that tries to standardize these things, they create the rules, then programmers write their rendering motor to interpret These regulations. It provides a good suggestion of how gecko, webkit and various big rendering engines progressed and what resulted in The present condition of tousled consumer-agent https://mysitesname.com/story9164753/the-2-minute-rule-for-prestashop-scrolling-info-based-on-selected-category-and-language